Hi, all:
I am porting Android GSM CALL function to my EVB. I have a /dev/
ttyVSP0 device which used to send AT command.
But fd = open ("/dev/ttyVSP0", O_RDWR); always returen -1 in mainLoop
() (locate in reference-ril.c).
My code looks like this:
static void * mainLoop(void *param) //reference-ril.c
{.....
while (fd < 0) {
if (s_port > 0) {
fd = socket_loopback_client(s_port, SOCK_STREAM);
LOGI("mainLoop 111\n");
} else if (s_device_socket) {
fd = socket_local_client( s_device_path,
ANDROID_SOCKET_NAMESPACE_FILESYSTEM,
SOCK_STREAM );
LOGI("mainLoop 222\n");
} else if (s_device_path != NULL) {
LOGI("mainLoop 333\n");
fd = open (s_device_path, O_RDWR);
LOGI("mainLoop open return %d.\n", fd);
if ( fd >= 0 && !memcmp( s_device_path, "/dev/
ttyVSP0", 12 ) ) {
/* disable echo on serial ports */
struct termios ios;
tcgetattr( fd, &ios );
ios.c_lflag = 0; /* disable ECHO, ICANON, etc...
*/
tcsetattr( fd, TCSANOW, &ios );
LOGI("mainLoop 444\n");
}
}
if (fd < 0) {
perror ("opening AT interface. retrying...");
LOGI("mainLoop 555\n");
sleep(10);
/* never returns */
}
else
{
LOGI("mainLoop exit while\n");
}
......
}
My debug info is (Just get by: logcat -b radio)
# logcat -b radio
I/RIL ( 408): Opening tty device /dev/ttyVSP0
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
I/RILJ ( 455): Connected to 'rild' socket
I/RILC ( 408): libril: new connection
I/RILC ( 408): RIL Daemon version: zmzmzm reference-ril 1.0
D/RILJ ( 455): [UNSL]< UNSOL_RESPONSE_RADIO_STATE_CHANGED
RADIO_UNAVAILABLE
W/GSM ( 455): Can't open /system/etc/voicemail-conf.xml
D/RILJ ( 455): [0000]> GET_CURRENT_CALLS
D/GSM ( 455): Poll ServiceState done: oldSS=[1 home null null
null ] newSS=[1 home null null null ] oldGprs=1 newGprs=1
oldType=unknown newType=unknown
D/RIL ( 408): onRequest: GET_CURRENT_CALLS
D/RILJ ( 455): [0000]< GET_CURRENT_CALLS error:
com.android.internal.telephony.gsm.CommandException:
RADIO_NOT_AVAILABLE
D/GSM ( 455): [DataConnectionTracker] Radio is off and clean up
all connection
D/GSM ( 455): [DataConnectionTracker] Clean up connection due to
radioTurnedOff
D/GSM ( 455): [DataConnection] Stop poll NetStat
D/GSM ( 455): [DataConnectionTracker] setState: IDLE
D/GSM ( 455): [DataConnection] Stop poll NetStat
D/GSM ( 455): [DataConnectionTracker] ***trySetupData due to
roamingOff
D/GSM ( 455): [DataConnectionTracker] trySetupData: Not ready for
data: dataState=IDLE gprsState=1 sim=false UMTS=false phoneState=IDLE
dataEnabled=true roaming=false dataOnRoamingEnable=false
D/GSM ( 455): [GsmSimCard] Broadcasting intent
SIM_STATE_CHANGED_ACTION NOT_READY reason null
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
D/STK ( 455): StkAppService$ServiceHandler: OP_BOOT_COMPLETED
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
I/RIL ( 408): mainLoop 333
I/RIL ( 408): mainLoop open return -1.
I/RIL ( 408): mainLoop 555
[ 121.580000] android_power: sleep (0->2) at 121572574640 (1970-01-01
00:02:01.572582011 UTC)
My /dev info:
# ls -l /dev/ttyVSP0
crw------- root root 250, 0 1970-01-01 00:00 ttyVSP0
# ls -l /system/lib/libreference-ril.so
-rw-r--r-- system system 21896 2009-02-02 03:41 libreference-
ril.so
# ls -l /system/lib/libril.so
-rw-r--r-- system system 27112 2009-02-02 03:27 libril.so
£š2£©If i chang /dev/ttyVSP0£¬Open("/dev/ttyVSP0") successful, bu
kernel panic. if i chmod 772, Open() OK£¬ otherwise (such as 644, 774,
744) permission defiend:
# /system/bin/rild -l /system/lib/libreference-ril.so -- -d /dev/
ttyVSP0
opening AT interface. retrying...: Permission denied
# chmod 644 /dev/ttyVSP0
# /system/bin/rild -l /system/lib/libreference-ril.so -- -d /dev/
ttyVSP0
opening AT interface. retrying...: Permission denied
# chmod 744 /dev/ttyVSP0
# /system/bin/rild -l /system/lib/libreference-ril.so -- -d /dev/
ttyVSP0
opening AT interface. retrying...: Permission denied
# chmod 772 /dev/ttyVSP0
#/system/bin/rild -l /system/lib/libreference-ril.so -- -d /dev/
ttyVSP0
[ 140.940000]
[ 140.940000] MUTEX_LOCK = 0
[ 140.950000]
[ 140.950000] MUTEX_LOCK = 0
[ 140.950000]
[ 140.950000] MUTEX_LOCK = 0
[ 140.960000]
[ 140.960000] MUTEX_LOCK = 0
[ 140.960000] vsp_tty_open: port number 0 //but mainLoop still
while (fd < 0)
Kernel panic info:
# chmod 777 /dev/ttyVSP0
[ 247.690000]
[ 247.690000] MUTEX_LOCK = 0
[ 247.690000]
[ 247.690000] MUTEX_LOCK = 0
[ 247.690000]
[ 247.690000] MUTEX_LOCK = 0
[ 247.700000]
[ 247.700000] MUTEX_LOCK = 0
[ 247.700000] vsp_tty_open: port number 0 //this is my debug
info in my VSP driver.
[ 247.920000] Unable to handle kernel NULL pointer dereference at
virtual address 00000000
[ 247.920000] pgd = c0004000
[ 247.920000] [00000000] *pgd=00000000
[ 247.920000] Internal error: Oops: 817 [#1] PREEMPT
[ 247.920000] Modules linked in:
[ 247.920000] CPU: 0 Not tainted (2.6.25 #31)
[ 247.920000] PC is at ghdi_gpdma_set_property+0x2cc/0x388
[ 247.920000] LR is at 0xc02dfc50
[ 247.920000] pc : [<c0196dbc>] lr : [<c02dfc50>] psr: 60000093
[ 247.920000] sp : c68b1f20 ip : 00000000 fp : c68b1f44
[ 247.920000] r10: 00000000 r9 : 00000001 r8 : ffc00000
[ 247.920000] r7 : c02df5d0 r6 : c68b1f68 r5 : 00000000 r4 :
00000001
[ 247.920000] r3 : 00000000 r2 : 0000058f r1 : c68b0000 r0 :
00000000
[ 247.920000] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM
Segment kernel
[ 247.920000] Control: 0005317f Table: 473bc000 DAC: 00000017
[ 247.920000] Process swapper (pid: 224, stack limit = 0xc68b0268)
[ 247.920000] Stack: (0xc68b1f20 to 0xc68b2000)
[ 247.920000] 1f20: c0193b80 20000013 c68b1f44 00000000 c68b1f68
c882ab6c c68b1fa4 c68b1f48
[ 247.920000] 1f40: c0195aa8 c0196b00 00000000 40000013 468d3000
00000000 c02df5f8 0000011a
[ 247.920000] 1f60: 468d3000 c7355400 0000058f 00000400 0000011a
2002e010 c0141c40 0000011a
[ 247.920000] 1f80: 00000000 c02df5f8 00000000 00000000 00000000
c02df5d0 c68b1ff4 c68b1fa8
[ 247.920000] 1fa0: c01961dc c0195908 00000000 00000000 00000001
00000000 c68b1fb8 c68b1fb8
[ 247.920000] 1fc0: 2002d7b0 00000010 00000000 00000000 00000000
00000000 00000000 00000000
[ 247.920000] 1fe0: 00000000 00000000 00000000 c68b1ff8 c003eef0
c0195e50 00000000 00000000
[ 247.920000] Backtrace:
[ 247.920000] [<c0196af0>] (ghdi_gpdma_set_property+0x0/0x388) from
[<c0195aa8>] (vsp_read+0x1b0/0x4f8)
[ 247.920000] r6:c882ab6c r5:c68b1f68 r4:00000000
[ 247.920000] [<c01958f8>] (vsp_read+0x0/0x4f8) from [<c01961dc>]
(crm_manager_a9+0x39c/0x578)
[ 247.920000] [<c0195e40>] (crm_manager_a9+0x0/0x578) from
[<c003eef0>] (do_exit+0x0/0x68c)
[ 247.920000] Code: e023e39c e5962000 e5933050 e3a04001 (e5832000)
[ 247.930000] Kernel panic - not syncing: Fatal exception
My question is:
(1)Why i can't open("/dev/ttyVSP0") Ok£¬but Open("/dev/ttyS0") OK¡£
# ls -l /dev/ttyVSP0
crw------- root root 250, 0 1970-01-01 00:00 ttyVSP0
# ls -l /dev/ttyS0
crw------- root root 4, 64 1970-01-01 00:00 ttyS0
£š2£©How to make GSM call funtcion??
I always get "Not registered on network" when i call somebody¡£I have
implemented my Verdor RIL, how to solved Open("/dev/ttyS0") problem??
(3) My android kernel is compiled by the third party toolchain£¬not by
Android toolchain.Is this problem???
please help me thanks
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